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Partial Aggregate Showplan Operator

  • Article

Partial Aggregate is used in parallel plans. It applies an aggregation function to as many input rows as possible so that writing to disk (known as a "spill") is not necessary. Hash Match is the only physical operator (iterator) that implements partition aggregation. Partial Aggregate is a logical operator.

See Also

Tasks

How to: Display an Actual Execution Plan

Reference

Hash Match Showplan Operator

Concepts

Logical and Physical Operators Reference
Displaying Execution Plans by Using the Showplan SET Options (Transact-SQL)

Help and Information

Getting SQL Server 2005 Assistance